I don't have the Brigadier, or an Inox version, mine is the M9 version they had out. The difference is yours is SS with a heavier reinforced slide, mine has a teflon coating.
I have fired thousands of rounds through mine. I have no noticable metal wear yet. Try as I might, I cannot shoot as accurately as my Beretta. There has never been a failure to feed. The only problem that happened was the slide not going into battery, and the fault was mine (limp wristed - it was my first gun, I did stupid things). I avoid abusing my firearms, beyound normal use, but other Berettas I know of have taken abuse and kept working fine. The grip fills my medium sized hands fine, although later models are better sculpted.